Boosted photocatalytic conversion of CO2 into solar fuel through photo-magnetic coupling

Relatively low conversion efficiency is the main limitation for realizing the conversion from CO2 photoreduction to high-value-added chemicals. Herein, we demonstrate that coupling alternating magnetic field (AMF) can significantly enhance the solar-catalyzed CO2 conversion process. Utilizing NiO / TiO2 as the experimental photocatalyst, CO2 could be reduced into CH4 with the participation of water vapor. The catalytic system presents a high activity that is improved by & SIM;200 % toward CH4 production through integrating with AMF. The applied AMF, on one hand, can increase the density of carries by restraining the combination of photogenerated electron-hole pairs. On the other hand, the applied AMF enhances the oxidizability of the catalysts with simulated solar irradiation to boost the oxidation of H2O to O-2. Further, our examination illuminates that the Ni species serve as the adsorption/mobilization sites of CO2 to boost the conversion of CO2 to CH4 by photogenerated e( - ) and the H + produced by H2O. This strategy paves a new path for boosting photocatalytic CO2 conversion by integrating AMF into the reaction.

Automated summary

Utilizing alternating magnetic field (AMF) can significantly enhance the solar-catalyzed CO2 conversion process, improving the conversion efficiency of CO2 photoreduction to high-value-added chemicals.